package main
 
import (
    "fmt"
)
 
func fibonacci(c chan<- int, quit <-chan int)  {
    x, y := 1, 1

    for {
        select {
        case c <- x:
            x, y = y, x + y
        case <- quit:
            return
        }
    }
}


func main() {
    c := make(chan int)
    quit := make(chan int)

    go func()  {
        for i := 0; i < 6; i++ {
            fmt.Println(<-c)
        }
        quit <- 0 
    }()

    fibonacci(c, quit)
}